Combination excavator, crusher, and dredger



W. A. HUELSDONK. COMBINATION EXCAVATOR, CRUSHER, AND DREDGER. APPLICATION FILED JULY 31.1919.

INVENTOR. .Huelualdc 'M ATTORNEY Patented May 1'8, 1920.

9. v N Mw lnl. l

y A mm WILLIAM A. HUELSDONK., or SAN FRANCISCO,l CALIFORNIA.

COMBINATION EXcAvA'roza, eausnnga, AND ramena..

Specification of Letters Patent.

Patented May is, 192e.

Application filed July 31, 1919. Serial No. `314,430.

To all 'whom it may concern.'

Be it known thatI, VILLIAMl A. HUELs- DONE, a citizen of the United States, residing at the city and county 1 of San Francisco, State of California, have invented certain new and useful Im rovements in Combination Excavators, rushers, and Dredgers; and I do declare the following to be a full, clear, and exact description of the same, reference being had to the accompanying drawings, and to the characters of reference marked thereon, which form a part of this application. i j

This invention relates to improvements in combined excavating and dredging devices,

and particularly to a type adapted to beL used in hydraulic mining, the `principal ob ject of the invention being to produce la de'- vice by means of whicha rock bank may be gradually cut down, from such cuttings the over-sized rocks being then suitably crushed and acted on by a suction pumpthe same as the smaller rocks, gravel and sand, to be discharged therefrom at any desired point.

A further object is to use a suction pump in combination with the crusher sodesigned that the crushed rock and othersolid ma-V teral will be by-passed around the pump, and then discharged and will not be taken through the pump. As a third object I have produced a device which will be inexpensive of construction and simple of operation and yet eX- tremely eicient for the purpose for which it is designed.

These objects I accomplish by means of such structure and relative arrangement of parts as willfully. appear by a perusal of the following specification and claims.

On the drawings similar characters of reference indicate corresponding parts in the several views.

Figure 1 is a side elevation ofV my complete device as installed and in operation..

Fig. 2 is a vertical longitudinal section through the by-pass .ofthe pump. y

Fig. 3 is a vertical cross section of the same taken on a line 3 3 of Fig. 1. f

VFig.` L1 is a horizontalcross section of the by-pass taken on a line 4-4 of Fig. 1.

Referring now more particularly to the figures of reference on the drawings, the numeral 1 represents the supporting framework for the mechanism of the device. This framework is adaptedto be moved along the ground or floated on water as the work progresses and may rest directly on the `surface, or may have such supporting timbers as may be rendered necessary by varying ground contours, butV is preferably carried on a barge or raft. f

One end of a beam 2 is pivotally mounted to the frame 1, the other end being pivotally connected to the upper end-of a crusher or stamp beam 3 having a stamp-head 4: suitably attached tothe lower end thereof.

One end of a cable 5 is'attached to the'upper end of the beam 3, passing over a sheave 6 on the end of a walking beam 7 pivotally mounted to the frameas at 8. Turnable about such pivotal point is a drum 9 on which the cable 5 is wound. 1

The walking beam 7 has a connectingrod 10 which rod has verticall movement and is actuated by a crank arm 11 on a shaft 12 mounted to the frame 1, said shaft being turned by any suitable power means (not shown). c

The outer face of the beam 3 is provided with a plurality of picksl, adaptedto engage the face of the bank'14 and cut away fragments thereof with each downward movement of the beam 3.

I Suitably mounted to the frame 1 andbelow the same is a pump 15 preferably of the centrifugal type having an inlet pipe 16 which is screwed into one-end of a casting 17. The outlet or discharge pipe 18 from the pump is screwed into the top of the casting 17. The casting is provided with a double or divided passageway 19 connecting with the y.

pipe18 above and with a larger discharge pipe 2O screwed into the lower end of the casting 17, the passageway or nozzle being of ob long cross 'sections at the bottom and terminating adjacent the forward or pump end of the casting to permit of'free access to the pipe 20 from the main interior chamber y21 of the casting 17 for apurpose as will be seen.

lThe dividedpassageway 19 forms an ori-y fice or passageway 22 therebetween connecting the pipe 16`with the chamber 21. These 5 passageways `are preferably formed integral with the casting 17, and it is of course un-v derstood that suitable separation walls prevent direct communication therebetween.

Slidably mounted in the chamber 21 in front -may be removed for cle'aningvor' renewal.

Into the rear of the casting 17 and chamber 21 therein is screwed the extension 2d of the intake pipe, this being provided with a suc# tion hose connection or ball and socket joint 25 and a slip joint 26. The pipe 24 terminates at its lower end in an open ended casting 27 which has a screen orgrizzly 28 across its mouth, which is adjacent the stamp-beam 3. A guide rod 29 is fixedly mounted on top of the member 27 on which slides a guide 30 secured to the beam 3, a spring 31 being interposed on the rod 29 between the guide andthe member 27.

The upper end of the bar 29 is provided with an eye in which is secured one end of a cable 32 which passes over a sheave 33 on the frame 1 and thence to a cable drum 34 on said frame.

A' ,hydraulic nozzle is secured tothe member 27 underneath the same and is connected by a hose 36 with any suitable water supply.

The operation is as follows Assuming the device has been suitably positioned for operations adjacent a mineral bearing bank, the bar 3 is caused to inove up and down by theaction of the connecting rod 10. This movement causes the picks 13jto engage the bank and some of the material thereof is broken off and falls 'into the pit, pond or sump 37 in which a certain level of water is maintained, the flow o f water through the outlet nozzle 35 keeping the material in the sump well stirred? up.

Any rock too large for the suctionl pipe, which has been cut from the bank with the line material, is carried against the grizzly 28 by the suction of the pump, where it is brokenV up by the sta-mp 4. Should there be no' rock under the stampat the time of its descent, the spring 31 will take theA shock. The pump 15 then dra-ws water, rocks, gravel and sand through the grizzly'and pipe 24. The screen 23, however, interposed in the line of intake to the pump is of sufficiently small mesh so that nothing too coarse to pass through the pump can pass therethrough. Y

u The casting 17 is of suiiciently larger size than thel pipes entering therein that the chamber 21 thereof will be so large proportionate to the said pipes so that the water passing from the outlet of pipe 24 to the intake ofpipe 1G will have such a low ve# locity that no'heavy,solid material .will tend to be drawn against the screen 23, abut will drop` into the pipe 2O by the force of gravity- The I rock, etc., therefore falls into the pipe 20' while the water passing through the pump is thence forced through the outlet 18 and nozzle 19 into the pipe 20 where it forces thehrock, etc., collected therein out of the pipe 2O to be discharged inte a sluice box or any suitableV receptacle.

Should it be desired to operate at a greater or lesser depth, the cables 5 and 32 are drawn up or let out, this raising or lowering the beam 3 and the pump intake pipe 24E the desired distance.

From the foregoing description it will be readily seen that I have produced such a device as substantially fulfils the object of the invention as set forth herein.

While this specification setsforthin de# tail the present and preferred construction of the device, still in practice such deviations from such detail may be resorted to as do not form a departure from the spirit of the invention, as defined by the appended claims.-

. Having thus described my invention, what I claim as new and useful and desire to secure by Letters Patent is j Y l. A combination excavator, Crusher, and dredger comprising a' frame, a walking beam pivotally mounted to the frame' and adapted for vertical movement, a stampbeam pivoted at one end of the' walking beam, picks on the outer edge ofthe beam, a stamp-head on the lower end of thebeam, a suction pump whose intake is adjacent the stamp-head, and a grizzly between the intake and stamp-,head whereby rocks of large j size will not be carried into the intake until broken up by the stamp. Y Y

2..-A combination excavator, Crusher and dredger comprising a. frame, a .walking beam pivotally mounted to the frame and adapted for vertical movement, ai stamp= beam pivoted at one end of the walking beam, picks on the outer edge of the beam,

a suction pump, an intake pipetherefor hav,-

ing a flexible connection therein and whose intakeis adjacent the stamp'beam, a grizzly 105 covering said intake, a guide rod on said intake coacting with a guide on the stampbeam, means for raising or lowering said intake pipe, and means for raising or low ering the stamp-beam independent ofthe motionv imparted thereto by the walking beam.` c Y 3. The `combination with a. rock crushing stamp, of a suction dredging means, such means comprising a suction pump, an in 115 take pipe whose mouth is adj avcentr the stamp, a discharge pipe, and'. means interposed in said intakey pipe whereby the solid material drawn-upl into the intake pipe will be diverted therefrom into the r discharge pipe `of the pump without passing through the pump. Y f

il. The `combination with a rock crushing stamp of va suction dredging..means, such means comprising a suction pump,;an intake pipe whose mouth is adjacent the stamp, a discharge ypipe passing around the intake pipe to form a. nozzlel discharging into a further discharge `pipe having communication with the intake pipe, lalvidga Yremovable 130 screen interposed in the intake pipe just forward of the last named discharge pipe, whereby Water may pass into the pump therethrough but coarse material carried into the intake pipe Will be diverted into the last named discharge pipe and will be forced along the seid pipe bythe force of the Water issuing from the first named discharge pipe. In testimony whereof I aix my signature in presence of two witnesses.

WILLIAM A. HUELSDONK. Witnesses:` i v VERADINE WARNER, FRANK H. CARTER. 

